Array antenna
US-2024235047-A9 · Jul 11, 2024 · US
Doppler-nulling traveling-wave antenna relays for high-speed vehicular communications
US8948690B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8948690-B2 |
| Application number | US-201113395880-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 21, 2011 |
| Priority date | Sep 21, 2011 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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An antenna relay system for facilitating wireless communication between mobile terminals on a high-speed rail vehicle and stationary base stations with substantially reduced Doppler shift effects comprises matched traveling wave directional antennas mounted to a high-speed rail vehicle and positioned collinearly alongside the railway. Both antennas continually transmit and receive at a fixed angle relative to the motion of the train so as to circumvent the Doppler shift. The signal transmitted or received by the stationary antenna is conducted to a nearest node for communication with an access network.
First claim
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What is claimed is: 1. A method to enhance wireless communications in high-speed vehicles through Doppler-nulling traveling-wave antenna relays, the method comprising: aggregating wireless traffic from a plurality of wireless communication devices at an access terminal on a moving vehicle; and forwarding the wireless traffic to a wireless communication network through a pair of matched traveling-wave directional antennas arranged to transmit and receive signals at a predefined a…
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- What does patent US8948690B2 cover?
- An antenna relay system for facilitating wireless communication between mobile terminals on a high-speed rail vehicle and stationary base stations with substantially reduced Doppler shift effects comprises matched traveling wave directional antennas mounted to a high-speed rail vehicle and positioned collinearly alongside the railway. Both antennas continually transmit and receive at a fixed an…
- Who is the assignee on this patent?
- Duerksen Gary L, Empire Technology Dev Llc
- What technology area does this patent fall under?
- Primary CPC classification H01Q1/32. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).